I would not buy a product from them again. My brother got 2 filament dryers on there Kickstarter and gave one to me as a present. It has failed with less than 30 heat cycles and I don't print large parts, so we are talking 30 mins to 3 hours per print. As I don't print that often it's out of warranty. Customer service got back to me in a reasonable time but were not very helpful after requesting photos and video, they said there was nothing they could do. No spare parts available to fix it which is very poor. Sadly my brother invested in a cheap quality under developed product with no parts back up. If you've read this I would not recommend you buy their products.
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